henetha
I hope these morons are made to clean these ancient stones thoroughly, and then hit them where it hurts - financially with huge fines.
I detest their behaviour.
I suspect that cleaning the stones whilst leaving the rare lichen species intact would be way beyond these morons. Best they be sentenced to clearing up dog faeces from pavements, far more in line with their intellectual capabilities.
I'd love to hear their justifications for their assault on these rare lichens, or maybe they'd just have to confess their total ignorance of the damage they'd caused.They don't always seem the brightest.......